aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--include/llvm/Target/TargetLowering.h6
-rw-r--r--lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp13
-rw-r--r--lib/CodeGen/TargetLoweringBase.cpp13
-rw-r--r--lib/Target/R600/AMDGPUISelLowering.cpp4
-rw-r--r--lib/Target/R600/AMDGPUSubtarget.cpp4
-rw-r--r--lib/Target/R600/SIISelLowering.cpp2
-rw-r--r--lib/Target/R600/SIInstructions.td9
-rw-r--r--test/CodeGen/R600/32-bit-local-address-space.ll42
8 files changed, 79 insertions, 14 deletions
diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index 580a358..cd95a73 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -151,7 +151,9 @@ public:
// Return the pointer type for the given address space, defaults to
// the pointer type from the data layout.
// FIXME: The default needs to be removed once all the code is updated.
- virtual MVT getPointerTy(uint32_t /*AS*/ = 0) const { return PointerTy; }
+ virtual MVT getPointerTy(uint32_t /*AS*/ = 0) const;
+ unsigned getPointerSizeInBits(uint32_t AS = 0) const;
+ unsigned getPointerTypeSizeInBits(Type *Ty) const;
virtual MVT getScalarShiftAmountTy(EVT LHSTy) const;
EVT getShiftAmountTy(EVT LHSTy) const;
@@ -568,7 +570,7 @@ public:
/// otherwise it will assert.
EVT getValueType(Type *Ty, bool AllowUnknown = false) const {
// Lower scalar pointers to native pointer types.
- if (Ty->isPointerTy()) return PointerTy;
+ if (Ty->isPointerTy()) return getPointerTy(Ty->getPointerAddressSpace());
if (Ty->isVectorTy()) {
VectorType *VTy = cast<VectorType>(Ty);
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 30fde54..ef3466b 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -3242,6 +3242,10 @@ void SelectionDAGBuilder::visitGetElementPtr(const User &I) {
Ty = StTy->getElementType(Field);
} else {
+ uint32_t AS = 0;
+ if (PointerType *PtrType = dyn_cast<PointerType>(Ty)) {
+ AS = PtrType->getAddressSpace();
+ }
Ty = cast<SequentialType>(Ty)->getElementType();
// If this is a constant subscript, handle it quickly.
@@ -3251,14 +3255,13 @@ void SelectionDAGBuilder::visitGetElementPtr(const User &I) {
uint64_t Offs =
TD->getTypeAllocSize(Ty)*cast<ConstantInt>(CI)->getSExtValue();
SDValue OffsVal;
- EVT PTy = TLI->getPointerTy();
+ EVT PTy = TLI->getPointerTy(AS);
unsigned PtrBits = PTy.getSizeInBits();
if (PtrBits < 64)
- OffsVal = DAG.getNode(ISD::TRUNCATE, getCurSDLoc(),
- TLI->getPointerTy(),
+ OffsVal = DAG.getNode(ISD::TRUNCATE, getCurSDLoc(), PTy,
DAG.getConstant(Offs, MVT::i64));
else
- OffsVal = DAG.getIntPtrConstant(Offs);
+ OffsVal = DAG.getConstant(Offs, PTy);
N = DAG.getNode(ISD::ADD, getCurSDLoc(), N.getValueType(), N,
OffsVal);
@@ -3266,7 +3269,7 @@ void SelectionDAGBuilder::visitGetElementPtr(const User &I) {
}
// N = N + Idx * ElementSize;
- APInt ElementSize = APInt(TLI->getPointerTy().getSizeInBits(),
+ APInt ElementSize = APInt(TLI->getPointerSizeInBits(AS),
TD->getTypeAllocSize(Ty));
SDValue IdxN = getValue(Idx);
diff --git a/lib/CodeGen/TargetLoweringBase.cpp b/lib/CodeGen/TargetLoweringBase.cpp
index a2ea35e..7d28ed4 100644
--- a/lib/CodeGen/TargetLoweringBase.cpp
+++ b/lib/CodeGen/TargetLoweringBase.cpp
@@ -767,6 +767,19 @@ void TargetLoweringBase::initActions() {
setOperationAction(ISD::DEBUGTRAP, MVT::Other, Expand);
}
+MVT TargetLoweringBase::getPointerTy(uint32_t AS) const {
+ return MVT::getIntegerVT(getPointerSizeInBits(AS));
+}
+
+unsigned TargetLoweringBase::getPointerSizeInBits(uint32_t AS) const {
+ return TD->getPointerSizeInBits(AS);
+}
+
+unsigned TargetLoweringBase::getPointerTypeSizeInBits(Type *Ty) const {
+ assert(Ty->isPointerTy());
+ return getPointerSizeInBits(Ty->getPointerAddressSpace());
+}
+
MVT TargetLoweringBase::getScalarShiftAmountTy(EVT LHSTy) const {
return MVT::getIntegerVT(8*TD->getPointerSize(0));
}
diff --git a/lib/Target/R600/AMDGPUISelLowering.cpp b/lib/Target/R600/AMDGPUISelLowering.cpp
index 692b3b7..56a9a2b 100644
--- a/lib/Target/R600/AMDGPUISelLowering.cpp
+++ b/lib/Target/R600/AMDGPUISelLowering.cpp
@@ -233,6 +233,8 @@ SDValue AMDGPUTargetLowering::LowerGlobalAddress(AMDGPUMachineFunction* MFI,
const DataLayout *TD = getTargetMachine().getDataLayout();
GlobalAddressSDNode *G = cast<GlobalAddressSDNode>(Op);
+
+ assert(G->getAddressSpace() == AMDGPUAS::LOCAL_ADDRESS);
// XXX: What does the value of G->getOffset() mean?
assert(G->getOffset() == 0 &&
"Do not know what to do with an non-zero offset");
@@ -244,7 +246,7 @@ SDValue AMDGPUTargetLowering::LowerGlobalAddress(AMDGPUMachineFunction* MFI,
// XXX: Account for alignment?
MFI->LDSSize += Size;
- return DAG.getConstant(Offset, TD->getPointerSize() == 8 ? MVT::i64 : MVT::i32);
+ return DAG.getConstant(Offset, getPointerTy(G->getAddressSpace()));
}
void AMDGPUTargetLowering::ExtractVectorElements(SDValue Op, SelectionDAG &DAG,
diff --git a/lib/Target/R600/AMDGPUSubtarget.cpp b/lib/Target/R600/AMDGPUSubtarget.cpp
index 8b2e445..53cfe84 100644
--- a/lib/Target/R600/AMDGPUSubtarget.cpp
+++ b/lib/Target/R600/AMDGPUSubtarget.cpp
@@ -97,6 +97,10 @@ AMDGPUSubtarget::getDataLayout() const {
DataLayout.append("-p:32:32:32");
}
+ if (Gen >= AMDGPUSubtarget::SOUTHERN_ISLANDS) {
+ DataLayout.append("-p3:32:32:32");
+ }
+
return DataLayout;
}
diff --git a/lib/Target/R600/SIISelLowering.cpp b/lib/Target/R600/SIISelLowering.cpp
index dc721e9..9cbba6c 100644
--- a/lib/Target/R600/SIISelLowering.cpp
+++ b/lib/Target/R600/SIISelLowering.cpp
@@ -87,7 +87,7 @@ SITargetLowering::SITargetLowering(TargetMachine &TM) :
setLoadExtAction(ISD::EXTLOAD, MVT::f32, Expand);
setTruncStoreAction(MVT::f64, MVT::f32, Expand);
- setOperationAction(ISD::GlobalAddress, MVT::i64, Custom);
+ setOperationAction(ISD::GlobalAddress, MVT::i32, Custom);
setTargetDAGCombine(ISD::SELECT_CC);
diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td
index 436a2cd..8c52a2e 100644
--- a/lib/Target/R600/SIInstructions.td
+++ b/lib/Target/R600/SIInstructions.td
@@ -1746,14 +1746,13 @@ def : Pat <
/********** ======================= **********/
def : Pat <
- (local_load i64:$src0),
- (i32 (DS_READ_B32 0, (EXTRACT_SUBREG $src0, sub0),
- (EXTRACT_SUBREG $src0, sub0), (EXTRACT_SUBREG $src0, sub0), 0, 0))
+ (local_load i32:$src0),
+ (i32 (DS_READ_B32 0, $src0, $src0, $src0, 0, 0))
>;
def : Pat <
- (local_store i32:$src1, i64:$src0),
- (DS_WRITE_B32 0, (EXTRACT_SUBREG $src0, sub0), $src1, $src1, 0, 0)
+ (local_store i32:$src1, i32:$src0),
+ (DS_WRITE_B32 0, $src0, $src1, $src1, 0, 0)
>;
/********** ================== **********/
diff --git a/test/CodeGen/R600/32-bit-local-address-space.ll b/test/CodeGen/R600/32-bit-local-address-space.ll
new file mode 100644
index 0000000..d19a82e
--- /dev/null
+++ b/test/CodeGen/R600/32-bit-local-address-space.ll
@@ -0,0 +1,42 @@
+; RUN: llc < %s -march=r600 -mcpu=verde | FileCheck %s
+
+; On Southern Islands GPUs the local address space(3) uses 32-bit pointers and
+; the global address space(1) uses 64-bit pointers. These tests check to make sure
+; the correct pointer size is used for the local address space.
+
+; The e{{32|64}} suffix on the instructions refers to the encoding size and not
+; the size of the operands. The operand size is denoted in the instruction name.
+; Instructions with B32, U32, and I32 in their name take 32-bit operands, while
+; instructions with B64, U64, and I64 take 64-bit operands.
+
+; CHECK-LABEL: @local_address_load
+; CHECK: V_MOV_B32_e{{32|64}} [[PTR:VGPR[0-9]]]
+; CHECK: DS_READ_B32 [[PTR]]
+define void @local_address_load(i32 addrspace(1)* %out, i32 addrspace(3)* %in) {
+entry:
+ %0 = load i32 addrspace(3)* %in
+ store i32 %0, i32 addrspace(1)* %out
+ ret void
+}
+
+; CHECK-LABEL: @local_address_gep
+; CHECK: V_ADD_I32_e{{32|64}} [[PTR:VGPR[0-9]]]
+; CHECK: DS_READ_B32 [[PTR]]
+define void @local_address_gep(i32 addrspace(1)* %out, i32 addrspace(3)* %in, i32 %offset) {
+entry:
+ %0 = getelementptr i32 addrspace(3)* %in, i32 %offset
+ %1 = load i32 addrspace(3)* %0
+ store i32 %1, i32 addrspace(1)* %out
+ ret void
+}
+
+; CHECK-LABEL: @local_address_gep_const_offset
+; CHECK: V_ADD_I32_e{{32|64}} [[PTR:VGPR[0-9]]]
+; CHECK: DS_READ_B32 [[PTR]]
+define void @local_address_gep_const_offset(i32 addrspace(1)* %out, i32 addrspace(3)* %in) {
+entry:
+ %0 = getelementptr i32 addrspace(3)* %in, i32 1
+ %1 = load i32 addrspace(3)* %0
+ store i32 %1, i32 addrspace(1)* %out
+ ret void
+}
generated by cgit v1.1 at 2024-12-25 18:08:14 +0000